Erich Gustav Baum (on right) with undientified man (maybe his father-in-law David Dublon?) standing next to a narrow cobblestone street full of horse-drawn carriages Portraits Men

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Artist Rafaello Busoni with an unidentified man at an outdoor cafe getting his shoes shined.

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Studio portrait of unidentified woman wearing a man's suit and hat Portraits Women

Signed and dated by photographer

Josef Rieser drinking the waters with an unidentified man in the streets of Marienbad, Czechoslovakia Portraits Men

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Portrait of unidentified man Portraits Men

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Ludwig Levy displaying his sketch pad, showing a drawing of an older man with beard and hat.

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Writer Clara Michelson (second from left) seated at an outdoor table with three unidentified women and one unidentified man; Saint-Brevin-les-Pins, France Portraits Groups

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William Niclas (far left) next to Herr Richards and an unidentified man and woman; Ratibor, Poland Portraits Men

Handwritten on verso: Mormons, Ratibor

Albert Einstein and unidentified man Portraits Groups; Men

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Man Saying Good Bye Before Departure to the East Artworks

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Studio portrait of Hans Bernkopf as a young man. Portraits Men

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Studio portrait of Josef Molling with unidentified man; Heidelberg, Germany.

right: Joseph Molling sitting; left: unknown man standing